JP4556040B2 - Washing machine pouring device - Google Patents

Washing machine pouring device Download PDF

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JP4556040B2
JP4556040B2 JP2001156903A JP2001156903A JP4556040B2 JP 4556040 B2 JP4556040 B2 JP 4556040B2 JP 2001156903 A JP2001156903 A JP 2001156903A JP 2001156903 A JP2001156903 A JP 2001156903A JP 4556040 B2 JP4556040 B2 JP 4556040B2
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hot water
water
pouring
washing machine
water supply
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JP2002349960A (en
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佳克 辻
安司 纐纈
悟 中川
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パロマ工業株式会社
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Description

【0001】
【発明の属する技術分野】
本発明は、洗濯機に給湯器からの湯を注湯する洗濯機注湯装置に関する。
【0002】
【従来の技術】
従来から、給湯器から出湯された湯や浴槽内の残り湯を洗濯機に注湯するための洗濯機注湯装置が知られている。このような洗濯機注湯装置において、例えば、給湯器からの湯により洗濯する場合には、洗濯機注湯装置に接続される注湯リモコンから湯洗い開始操作を行うことにより、給湯器から洗濯機への出湯流路を開閉する電磁弁を開く。そのため洗濯機の水電磁弁が開弁すると、給湯器に通水されて燃焼動作を開始し、設定温度に加熱された湯が洗濯機に供給される。このため特に冬場等の水温が低い場合には、水道水をそのまま供給する場合に比べて洗剤を溶けやすくして汚れ落ちの効果を高くすることができる。
【0003】
【発明が解決しようとする課題】
しかしながら、給湯器の出湯温度は給湯器に接続される給湯リモコンで設定されるため、給湯リモコンで高温設定された状態で、注湯リモコンにより湯洗い開始操作を行うと、洗濯機には給湯リモコンで設定された高温の湯が供給されてしまう。一般に洗濯機に供給される湯の温度は50℃以下と指定されており、このような高温の湯が供給されると洗濯機が故障してしまうおそれがあると共に、洗濯物も傷みやすくなる。このため、台所等での給湯と洗濯機への注湯とを同時に行いたい場合には、給湯の設定温度を洗濯機への注湯に適した温度(例えば、40℃)に変えなければならず、給湯温度を自由に選択することができず使い勝手が悪かった。
しかも、ウールを洗う場合には、30℃程度の湯を使うことが最も好ましいのであるが、上記のような給湯器で30℃の出湯を行おうとすると、給湯器の熱交換器でドレンが発生してしまうため、このような低温の湯を洗濯機に注湯することができなかった。尚、従来の給湯器でも湯水混合制御弁を用いて、湯・水の混合比を制御すれば、低温の湯を出湯して洗濯機に注湯することはできるが、器具が高価になってしまうという問題があった。
また、給湯リモコンによって高温設定されている場合には、洗濯機に注湯される高温の湯に冷水を混合させて湯温を下げる洗濯機注湯装置が知られているが、このような洗濯機注湯装置では、単に冷水を混合させているだけであるから、適切な温度の湯を供給することはできなかった。
本発明の洗濯機注湯装置は上記課題を解決し、使い勝手よく洗濯機への注湯と台所等での給湯を同時に行うと共に、良好なウール洗いを可能にすることを目的とする。
【0004】
【課題を解決するための手段】
上記課題を解決する本発明の請求項1記載の洗濯機注湯装置は、
冷水を加熱して台所等の一般給湯栓に給湯する給湯器と、
上記給湯器の給湯路から分岐して湯を洗濯機に供給する洗濯湯供給路と、
上記洗濯湯供給路を開閉する湯開閉手段と、
冷水を洗濯機に供給する洗濯水供給路と、
上記洗濯水供給路を開閉する水開閉手段と
を備え
上記湯開閉手段と上記水開閉手段との両方を開成して洗濯機に混合湯を注湯する湯水同時供給処理と、上記湯開閉手段と上記水開閉手段との何れか一方のみを開成して洗濯機に注湯あるいは注水する湯水片側供給処理とを組み合わせた単位注湯処理をサイクリックに繰り返し行うとともに、上記各単位注湯処理の終了時点で洗濯機に供給された湯の温度が所定温度となるように制御する注湯制御手段を備えた洗濯機注湯装置において、
上記単位注湯処理は、所定の注湯量だけ或いは所定の注湯時間だけ洗濯機に注湯する毎に1回の処理が終了するよう、上記湯水同時供給処理と上記湯水片側供給処理との配分を決定することを要旨とする。
【0006】
また、本発明の請求項記載の洗濯機注湯装置は、上記請求項1記載の洗濯機注湯装置において、
洗濯機への注湯動作と一般給湯栓への給湯動作とを同時に行う際には、給湯器の出湯温度は、一般給湯栓への給湯設定温度が優先されることを要旨とする。
【0007】
上記構成を有する本発明の請求項1記載の洗濯機注湯装置は、洗濯湯供給路を通して給湯器で出湯された湯を洗濯機へ供給し、洗濯水供給路を通して冷水を洗濯機へ供給する。洗濯機へ湯を供給する洗濯注湯時には、注湯制御手段が湯水同時供給処理と湯水片側供給処理との配分を制御し、各単位注湯処理の終了時点で洗濯機に供給された湯の温度はあらかじめ決められた所定温度となる。このため給湯器の出湯温度が何℃に設定されていても、洗濯機へは最終的には、あらかじめ決められた所定温度で注湯することができる。すなわち、使用者は、洗濯機へ最適な注湯温度で注湯しながら、給湯器からの出湯温度を自由に設定することができる。
さらに、洗濯湯供給路からの湯と洗濯水供給路からの冷水を混合させることにより、給湯器が出湯可能な最低温度の湯よりも低温の湯を洗濯機に供給できる。
【0008】
また、上記洗濯機注湯装置は、所定の注湯量だけ或いは所定の注湯時間だけ洗濯機に注湯する毎に、洗濯機への注湯温度はあらかじめ決められた所定温度となり、この単位注湯処理を繰り返すという簡単な制御で洗濯に必要な量の湯を供給する。
【0009】
また、本発明の請求項記載の洗濯機注湯装置は、一般給湯栓への給湯動作と洗濯機への注湯動作とを同時におこなっても、一般給湯栓への給湯設定温度どおりに給湯器から出湯される。
【0010】
【発明の実施の形態】
以上説明した本発明の構成・作用を一層明らかにするために、以下本発明の洗濯機注湯装置の好適な実施形態について説明する。
【0011】
図1は、本発明の一実施形態としての洗濯機注湯機能付風呂給湯器1(以下、単に給湯器1と呼ぶ)の概略構成図である。この給湯器1は、大別すると循環加熱部40と給湯部50と洗濯注湯制御部60とから構成される。
【0012】
循環加熱部40は、浴槽水を加熱する風呂熱交換器42と、浴槽水を風呂熱交換器42へ送る戻し管46と、風呂熱交換器42で加熱された浴槽水を浴槽20へ送る往き管47とで循環加熱回路を形成すると共に、戻し管46と往き管47とを繋ぎ風呂熱交換器42を迂回する風呂バイパス管34を備える。
この戻し管46には、上流側から順に、追い焚き前の湯温を検知する風呂入水サーミスタ24、浴槽水を循環させる循環ポンプ22、この循環水の流れを確認する流水スイッチ23が設けられる。一方、往き管47には、風呂熱交換器42の近傍に追い焚き後の湯温を検知する風呂出湯サーミスタ25が設けられる。風呂熱交換器42は、風呂燃焼室49上部に設けられ、風呂バーナ41により加熱される。
【0013】
給湯部50は、水道管に接続される給水管56と、給水管56から供給される水を加熱する給湯熱交換器52と、給湯熱交換器52で加熱された湯を送り出す流路となる出湯管57とを備え、給湯熱交換器52は、給湯燃焼室59上部に設けられ、給湯バーナ51により加熱される。尚、給湯バーナ51は、燃焼能力の異なる3組のバーナからなり、燃焼量に応じて燃焼するバーナが切替えられる。
給水管56には、上流から順に、入水量を検知する流量センサ26、入水温を検知する給湯入水サーミスタ27、設定湯温が得られるように通水流量を調整するモータ駆動式の水量制御弁28が設けられ、出湯管57には、熱交換後の湯温を検知する給湯熱交換器出口サーミスタ12が設けられる。
【0014】
給水管56と出湯管57との間には、給湯熱交換器52を迂回する給湯バイパス管36が接続され、この給湯バイパス管36を開閉するバイパス弁14が設けられる。この給湯バイパス管36との接続箇所より下流側の出湯管57には、給湯バイパス管36を通過する水と熱交換後の湯との混合湯の温度を検知する給湯出湯サーミスタ15が設けられ、そのさらに下流で、台所等の給湯カラン21(一般給湯栓)に連通する一般給湯配管37と接続される。また、浴槽20へ給湯するための落とし込み管30が給湯出湯サーミスタ15より下流の出湯管57から分岐して設けられる。落とし込み管30は、給湯部50と循環加熱部40とを接続するもので、上流側から順に、落とし込み管30を開閉する落とし込み電磁弁31、給湯部50から循環加熱部40への流量を検知する落とし込み流量センサ32、逆流を防止する2個の逆止弁33が設けられる。
【0015】
給湯部50と循環加熱部40とには、それぞれ燃焼用空気の供給路となる共通の給気ダクト35が設けられ、ファンモータ19により駆動する1つのファン18により空気が風呂燃焼室49と給湯燃焼室59とに同時に供給される。また、ガス流路は、その上流側から順に、ガス流路を開閉する元電磁弁10、通電量に応じたガス量に制御する比例弁11が設けられ、その下流側で給湯側ガス流路と風呂側ガス流路とに分岐する。給湯側には、3組のバーナへのガス流路を独立して開閉する給湯ガス電磁弁55がそれぞれ設けられ、各々独立した燃焼制御が行われる。一方、風呂側には、風呂側ガス流路を開閉する風呂ガス電磁弁45が設けられる。
風呂バーナ41、給湯バーナ51には、イグナイタ13の動作によりガスへ着火する電極43,53、燃焼炎を検知するフレームロッド44,54が設けられ、前記のセンサ類・アクチュエータ類と共にコントローラ9と電気的に接続され出湯・追い焚き等所定の制御が行われる。このコントローラ9は、マイコンを主要部として構成され、給湯動作を外部操作する給湯リモコン58と風呂動作を外部操作する風呂リモコン48とが接続される。
【0016】
給湯リモコン58は設定温度を38〜48℃の範囲及び50℃、60℃といった値に設定することができる。そして、コントローラ9は、給湯部50の出湯温度を給湯リモコン58で設定された設定温度に近づけるように給湯バーナ51の燃焼量を制御するといった出湯温制御を行う。
【0017】
洗濯注湯制御部60は、給湯部50の水量制御弁28よりも下流側の給水管56に接続される水供給管61と、落とし込み管30を介して出湯管57に連通する湯供給管62とを備え、それぞれの流路を開閉する給水電磁弁63と給湯電磁弁64とを備える。湯供給管62には、逆流を防止するための逆止弁2が設けられる。
水供給管61と湯供給管62とはそれぞれの電磁弁の下流側で合流し、主供給管65に接続される。主供給管65には、供給された湯や水の逆流を防止する2個の逆止弁3と、洗濯機90への注湯量を検知する注湯用流量センサ4が設けられる。
【0018】
主供給管65には、浴槽水を洗濯機90へ供給するための浴槽水供給管66が接続され、この浴槽水供給管66は循環加熱部40の往き管47に接続される。
往き管47の浴槽水供給管66への分岐部には、浴槽水の流路を浴槽20側あるいは洗濯機90側のどちらかへ切替える切替弁67が設けられる。また、図1において、切替弁67が閉の位置にある場合が、浴槽水の流路が浴槽20側に切替えられた状態(状態a)であり、切替弁67が開の位置にある場合が、浴槽水の流路が洗濯機90側に切替えられた状態(状態b)である。尚、図1における矢印a,bは、それぞれ状態a,bの場合の浴槽水の流れの向きを表している。そして、主供給管65は、浴槽水供給管66との接続部より下流側で洗濯機90に注湯するための注湯管92に接続される。
また、注湯モードの切替え等の外部操作を行うための注湯リモコン68が設けられ、この注湯リモコン68はコントローラ9と接続される。
【0019】
注湯リモコン68は、図2に示すように、洗濯機90の洗い動作時の注湯モードを選択する洗いモードスイッチ71と、すすぎ動作時の注湯モードを選択するすすぎモードスイッチ72と、選択された注湯モード等を表示するための表示パネル73と、注湯動作を開始させるためのスタートスイッチ74とを備える。洗い操作時の注湯モードとしては、浴槽20の残り湯をそのまま洗濯機90に供給する残り湯洗いモードと、浴槽20の残り湯を風呂熱交換器42で40℃に加熱して供給する残り湯加熱洗いモードと、湯供給管62からの湯と水供給管61からの冷水とを混合し40℃の混合湯として供給する湯洗いモードと、水供給管61からの冷水をそのまま供給する水洗いモードと、湯供給管62からの湯と水供給管61からの冷水とを混合し30℃の混合湯として供給するウール用湯洗いモードの5種類があり、すすぎモード時は、湯(40℃)すすぎモードと水すすぎモードの2種類がある。
【0020】
ここで水洗いモード、残り湯洗いモード、湯(ウール用を含む)洗いモードのそれぞれの注湯制御について説明する。尚、水すすぎモードと湯すすぎモードとの注湯制御は、それぞれ水洗いモードと湯洗いモードとの注湯制御と同様である。
水洗いモードでは、給湯電磁弁64を閉弁し、切替弁67を状態aに切替えて、給水電磁弁63を開弁する。このため、洗濯機90に設けられた水電磁弁91が開弁すると、水道管からの水が、給水管56、水供給管61、主供給管65、注湯管92を流れて洗濯機90に供給される。
【0021】
残り湯洗いモードでは、給水電磁弁63、給湯電磁弁64を閉弁し、切替弁67を状態bに切替えて、循環ポンプ22を駆動させる。このため、洗濯機90に設けられた水電磁弁91が開弁すると、浴槽20内の残り湯は、戻し管46、往き管47、浴槽水供給管66、主供給管65、注湯管92を流れて洗濯機90に供給される。
また、残り湯加熱洗いモードの場合は、上記のようにして残り湯を洗濯機90に供給する途中で、風呂熱交換器42を通過する際に、風呂バーナ41によって加熱し供給するものである。尚、風呂熱交換器42を通過した残り湯の温度が40℃となるように、コントローラ9によって風呂バーナ41の燃焼が制御される。
【0022】
湯洗い(ウール用湯洗いも含む)モードでは、切替弁67を状態aに切替えて、給湯電磁弁64と給水電磁弁63を同時に開弁し(本発明の湯水同時供給処理)、その後どちらか一方だけを開弁する(本発明の湯水片側供給処理)。このような行程を1サイクル(本発明の単位注湯処理)とし、1サイクルを完了した時点で洗濯機に注湯された湯の温度が注湯目標温度(湯洗いモード:40℃、ウール用湯洗いモード:30℃)となるようにコントローラ9が、給湯電磁弁64と給水電磁弁63とを開閉制御する。そして、このサイクルを繰り返すことによって所望の注湯量を得る。
ここで、給湯電磁弁64を開弁した場合の洗濯機90への注湯順路について説明する。給湯電磁弁64を開弁した状態で、洗濯機90の水電磁弁91が開弁すると、給湯部50に通水されて給湯バーナ51の燃焼動作を開始し、加熱された湯が出湯管57、落とし込み管30、湯供給管62、主供給管65、注湯管92を流れて洗濯機90に供給される。
従って、給湯電磁弁64と給水電磁弁63とを同時に開弁すると主供給管65に湯と水が同時に供給され混合され、混合された湯は注湯管92を通って洗濯機90に供給される。
【0023】
次に、ウール用湯洗いモードにおけるコントローラ9の行う制御処理について、図3のフローチャートを用いて説明する。尚、ウール用湯(30℃)洗いモードと湯(40℃)洗いモードとの制御の違いは、洗濯機90への注湯温度を30℃にするか40℃にするかの違いだけである。
ウール用湯洗いモードが選択された状態で、スタートスイッチ74が押されると(S1)、切替弁67を状態aに切替え、給水電磁弁63を開弁する(S2)。ここで、給水電磁弁63を開弁したにもかかわらず注湯用水量センサ4により通水が検出されない場合(S3:NO)には、洗濯機90の水電磁弁91が閉弁していると考えられるため、洗濯機90による洗い動作が開始されるまでの所定時間(例えば、18時間)待機する(S4)。尚、注湯用水量センサ4による通水の検出は、注湯用水量センサ4が2.5リットル/分以上の流量を3秒間検出したかどうかで決定している。
ここで長時間待機するのは、全自動洗濯機の予約タイマーによる使用が考えられるためである。そして、所定時間経過しても通水が検出されない場合には(S4:YES)、使用者の誤操作であったと判断し、給水電磁弁63を閉じて(S5)制御を終了する。
【0024】
一方、ステップ3において通水が検出された場合には、洗濯機90の水電磁弁91が開弁して洗い動作が開始されたと判断し、ステップ6に進む。ステップ6では、台所等の給湯カラン21に出湯するために給湯部50が使用中かどうかを判断する。給湯部50が使用中でない場合(S6:NO)は、給湯部50の出湯温度を40℃に設定して、給湯電磁弁64を開弁する(S7)。ここで、出湯温度を40℃と設定するのは、給湯熱交換器52にドレンが発生する問題があるために給湯部50では、30℃のような低温の湯を出湯することができないためである。尚、後述するように給湯部50が使用中の場合には、出湯温度は給湯側での設定温度が優先される。
そして、1サイクルにおける供給すべき湯量と水量とを、給湯入水サーミスタ27で検出された水温(T2)と給湯出湯サーミスタ15で検出された出湯温(T3)とから演算する(S8)。本実施形態では、1サイクルで10リットルの混合湯が洗濯機90に注湯されるように制御される。
【0025】
ここで上記の演算方法について述べる。給水電磁弁63と給湯電磁弁64とを同時に開弁した際の混合湯の湯量をQ1、その湯温をT1とし、給水電磁弁63と給湯電磁弁64とを同時に開弁した際の混合湯量に対する水量の比を水比率(η)とする。尚、水比率(η)は器具によって決まる定数である。水と湯を同時に供給した後に、水か湯のどちらを供給するかは、式(1)によって決定され、T1が30℃未満であれば給湯電磁弁64を開弁して湯を供給し、30℃以上であれば給水電磁弁63を開弁して水を供給する。
T1=η×T2+(1−η)×T3・・・・・・(1)
そして、この際の混合湯量Q1は、式(2)で求まる。
Q1={30℃×10リットル−(T2 or T3)×10リットル}/{T1−(T2 or T3)}・・・・・・(2)
水と湯を同時に供給した後に、水を導入する場合には、T2を代入し、湯を導入する場合にはT3を代入する。そして、水と湯を同時に供給した後に、供給される水あるいは湯の量Q2は、式(3)によって求まる。
Q2=10リットル−Q1・・・・・・(3)
【0026】
そして、ステップ9において上記の演算方法によって計算された混合湯量Q1が洗濯機90に供給されたことが注湯用流量センサ4で検出される(S9:YES)と、上記演算結果に基づいて、給湯電磁弁64か給水電磁弁63のどちらかが閉弁される(S10)。そして、洗濯機90に供給される湯あるいは水の量がQ2となったことが注湯用流量センサ4で検出される(S11:YES)と給水電磁弁63が開弁状態になり、給湯電磁弁64が閉弁状態にされて(S12)、1サイクルが終了する。そして、ステップ6に戻って所望の注湯量となるまでこのサイクルが繰り返されて、ウール洗いに最適な30℃の湯が洗濯機90に供給される。
【0027】
混合湯量Q1の注湯中においては、常時注湯用流量センサ4で通水を検出しており、通水が検出されない状態(2.5リットル/分以下)になるたびに、その通水停止時間をカウント積算していき、その積算時間が所定時間(本実施形態では3分間)をこえた時点で(S13:YES)、洗濯機90への洗い用注湯動作が終了したと判断して給湯電磁弁64及び給水電磁弁63を閉じ(S14)、洗濯機90のすすぎ動作に対応した注湯制御を行うためのすすぎモードへ移る(S15)。
また、湯あるいは水量Q2を注湯中においても、常時注湯用流量センサ4で通水を検出しており、通水停止時間をカウント積算していき、その積算時間が所定時間(本実施形態では3分間)をこえた時点で(S16:YES)、洗濯機90への洗い用注湯動作が終了したと判断して給湯電磁弁64あるいは給水電磁弁63を閉じ(S17)、洗濯機90のすすぎ動作に対応した注湯制御を行うためのすすぎモードへ移る(S15)。
尚、給湯熱交換器52への通水が停止中は、給湯バーナ51の燃焼は停止し、通水再開により燃焼も再開される。
【0028】
一方、ステップ6で台所等の給湯カラン21に出湯するために給湯部50が使用中であると判断された場合にも、給湯電磁弁64が開弁される(S18)。そして、給湯部50の出湯温度が50℃未満に設定されている場合(S19:NO)には、その設定温度を優先したまま、ステップ8に移行して、上述した演算方法で1サイクルにおける供給すべき湯量と水量とが計算される。そして、計算された値に基づいて上述したようにサイクルが繰り返され、給湯部50での出湯温度を変えることなく、ウール洗いに最適な30℃の湯が洗濯機90に供給される。
また、出湯温度が50℃以上に設定されており(S19:YES)、かつ入水温が17℃未満の場合(S20:NO)には、給湯電磁弁64と給水電磁弁63を同時に開け続ける。また、入水温が17℃以上の場合(S20:YES)には、給湯電磁弁64を閉じて(S22)、給水電磁弁63のみを開け続ける。このため、50℃以上の高温の出湯温が設定されている場合に、高温の湯がそのまま洗濯機90に供給されて衣類を傷めてしまうといった不具合が生じることはない。
そして、注湯用流量センサ4で通水が検出されない状態(2.5リットル/分以下)の積算時間が所定時間(本実施形態では3分間)をこえた時点で(S21:YES)、洗濯機90への洗い用注湯動作が終了したと判断して開弁している給水電磁弁63及び給湯電磁弁64を閉じ(S14)、洗濯機90のすすぎ動作に対応した注湯制御を行うためのすすぎモードに移る(S15)。
【0029】
また、湯(40℃)洗いモードにおけるコントローラ9の制御処理は、上述したウール用湯(30℃)洗いモードの制御処理とほぼ同様である。異なる箇所は、ステップ8における演算が40℃の注湯温度となるように変化するのと、ステップ20の入水温度の判断が17℃から27℃に変わるところだけである。尚、給湯部50が未使用時には、給湯部50から出湯される湯は40℃に設定されるので、給水電磁弁63は極短時間しか開弁しないように制御されることになる。
また、給湯カラン21に出湯するために給湯部50が使用時には、洗濯注湯制御部60に供給される湯温は給湯リモコン58で設定された温度であるが、洗濯機90へは洗濯注湯制御部60で温度調節された湯が供給される。従って、給湯リモコン58で、例えば50℃のような高温の出湯温度の設定がなされていても、洗濯機90へは、そのような高温の湯が直接供給されてしまうことはない。
【0030】
洗いモードが終了するとすすぎモードに移行する。水すすぎモードでは、切替弁67を状態aにしたまま、給水電磁弁63を開弁する。このため、洗濯機90の水電磁弁91が開弁すると洗濯機90に水が供給される。そして、水すすぎモードに移行してから2時間が経過した時点で洗濯機90のすすぎ動作が終了したと判断して制御を終了する。
湯すすぎモードでは、切替弁67を状態aにしたまま、上述した湯洗いモードと同様の制御によって洗濯機90に40℃の湯が供給される。そして、湯すすぎモードに移行してから2時間が経過した時点で洗濯機90のすすぎ動作が終了したと判断して制御を終了する。
【0031】
以上説明したように、洗濯機注湯機能付風呂給湯器1では、給湯電磁弁64と給水電磁弁63とを同時に開弁し(本発明の湯水同時供給処理)、その後、給水電磁弁64と給湯電磁弁63のどちらか一方だけを開弁する(本発明の湯水片側供給処理)ことを1サイクル(本発明の単位注湯処理)とし、この1サイクルで所定の注湯温度となるように制御しているため、給湯部50で、湯水混合制御弁を用いて湯・水の混合比を制御しなくても、低温の湯を洗濯機90へ注湯することが可能となる。従って、ウールを洗濯するのに最適な30℃という低温の湯を簡単な構成で注湯でき、良好なウール洗いが安価に実施可能となる。
また、給湯部50から出湯された湯をそのまま洗濯機90に注湯するのではなく、洗濯注湯制御部60で給水管56からの水と混合して注湯するので、給湯設定温度が何℃であっても、常に最適な温度(40℃あるいは30℃)の湯を注湯できる。しかも、給湯設定温度が50℃以上の場合には、注湯温度を所定の温度にする制御は行わず、給水電磁弁63が開弁しっぱなしにされるので、所定の温度の湯を注湯することはできないものの、高温の湯がそのまま洗濯機90に注湯されて衣類を傷めてしまうことを防止できる。従って、給湯リモコン58で高温設定されていることに使用者が気付かずに、注湯リモコン68により湯洗い開始操作をおこなっても高温の湯が洗濯機90に注湯されることを防止できる。
そして、給湯カラン21(一般給湯栓)への給湯と洗濯注湯とを同時に行った場合には、給湯部50から出湯される湯温は、給湯リモコン58で設定した温度が優先されるので、洗濯機90へ注湯しながら、台所等で湯を使う場合に自由に給湯温度を設定できるので使い勝手がよい。
さらに、水と湯を同時に供給した後に、水あるいは湯を供給する順で1サイクルを構成しているので、逆の順番で1サイクルを構成した場合と比較して、高温の湯が供給される場合にウール等の洗濯物が傷む可能性を抑えることができる。
【0032】
また、従来の器具では、洗濯注湯制御部60を風呂付給湯器とは、別体のユニットとして、風呂付給湯器に外付けする洗濯機注湯装置としているため、水供給路61を水量制御弁28よりも上流側である水道管等に接続しなければならず、水供給管61と湯供給管62とにかかる水圧が変化してしまい、水比率(η)が器具による定数とならない。このため、上述したような制御によって洗濯に最適な温度の湯をつくろうとすると、混合湯温(T1)を計算によって求めることができないので、T1を測定するサーミスタが必要となってしまう。これに対して、本実施形態のように、洗濯注湯制御部60を給湯器1に内蔵すると水供給管61と湯供給管62とを共に、水量制御弁28よりも下流側の給水管56あるいは出湯管57から分岐して設けることができるため、給水電磁弁63と給湯電磁弁64とを同時に開弁した際に主供給管65に供給される水量と湯量の比、すなわち水比率(η)が常に一定となる。従って、主供給管65で混合された混合湯の温度T1を入水温T2と出湯温T3から求めることができるので、混合湯温T1を検出するためのサーミスタを設ける必要がなく、コストを抑えることができる。
【0033】
さらに、洗濯注湯制御部を風呂付給湯器に内蔵した器具としては、従来から、冷水や湯を循環加熱部の往き管や戻し管を介して洗濯機に注湯するものが知られている。この場合には、風呂熱交換器を冷水が通過する際に雰囲気中の水蒸気が凝縮し風呂熱交換器を腐食したり、下方のバーナに滴下して炎口つまりの原因となる不具合があった。また、往き管や戻し管を通過する際に圧損も大きくなっていた。これに対して、本実施形態の洗濯機注湯機能付風呂給湯器1では、冷水や湯は、往き管や戻し管とは、別の流路を通過するので上記のような問題も生じない。
【0034】
以上本発明の実施形態について説明したが、本発明はこうした実施形態に何等限定されるものではなく、本発明の要旨を逸脱しない範囲において、種々なる態様で実施し得ることは勿論である。
例えば、本実施形態の洗濯機注湯装置では、給湯電磁弁64と給水電磁弁63とを同時に開弁し、その後、どちらか一方だけを開弁する1サイクルを、所定の注湯量(例えば10リットル)だけ洗濯機90に注湯する毎に1サイクル(単位注湯処理)が終了するように、給水電磁弁63と給湯電磁弁64とを同時に開弁する湯水同時供給処理と、給水電磁弁63と給湯電磁弁64のどちらか一方だけを開弁する湯水片側供給処理との配分を決定するようにしているが、所定の注湯時間だけ注湯する毎に1サイクルが終了するように湯水同時供給処理と湯水片側供給処理との配分を決定するようにしても構わない。この場合のウール用洗いモードにおけるコントローラ9の行う制御処理について図4のフローチャートを用いて説明する。尚、所定の注湯量だけ注湯する毎に1サイクルが終了するようにしている場合と異なる制御についてのみ説明する。
ステップ80では、1サイクルにおける給水電磁弁63と給湯電磁弁64とを同時に開弁すべき時間A1と、給水電磁弁63あるいは給湯電磁弁64のどちらか一方だけを開弁すべき時間A2を演算する。尚、本実施形態では、1サイクルは、60秒で行われるように制御される。
【0035】
水と湯を同時に供給した後に、水か湯のどちらを供給するかは、式(4)によって決定され、T1が30℃未満であれば給湯電磁弁64を開弁して湯を供給し、30℃以上であれば給水電磁弁63を開弁して水を供給する。
T1=η×T2+(1−η)×T3・・・・・・(4)
そして、この際の同時開弁時間A1は、式(5),(6)で求まる。
A1={(T2−30℃)×η×60秒}/{(30℃−T1)+(T2−30℃)×η}・・・・・・(5)
A1={(T3−30℃)×(1−η)×60秒}/{(30℃−T1)+(T3−30℃)×(1−η)}・・・・・・(6)
水と湯を同時に供給した後に、水を導入する場合には、式(5)を用い、湯を導入する場合には、式(6)を用いる。そして、片側開弁時間A2は、式(7)によって求まる。
A2=60秒−A1・・・・・・(7)
【0036】
そして、ステップ90において上記の演算方法によって計算された同時開弁時間A1の間、給水電磁弁63と給湯電磁弁64を同時に開弁して、水と湯を同時に供給し、同時開弁時間A1の注湯が完了すると(S90:YES)、上記演算結果に基づいて、給湯電磁弁64か給水電磁弁63のどちらかを閉弁する(S10)。そして、片側開弁時間A2の間、給水電磁弁63或いは給湯電磁弁64のどちらかを開弁し、片側閉弁時間A2の注湯(水)が完了すると(S110:YES)、給水電磁弁63を開弁状態、給湯電磁弁64を閉弁状態にして(S12)、1サイクルを終了する。そして、ステップ6に戻って所望の注湯量となるまでこのサイクルを繰り返し、ウール洗いに最適な30℃の湯を洗濯機90に供給する。
【0037】
また、洗濯注湯制御部60を風呂付給湯器とは、別体のユニットとして、風呂付給湯器に外付けする洗濯機注湯装置としてもかまわない。この場合には、水比率(η)を検出するための検出手段、例えば、主供給管65に混合湯温(T1)を測定するためのサーミスタなどを設ける方が好ましい。
【0038】
【発明の効果】
以上詳述したように、本発明の請求項1の洗濯機注湯装置によれば、洗濯機へ最適な注湯温度で注湯しながら、給湯器の一般給湯栓への出湯温度を自由に設定して、台所等で好きな温度で湯を使うことができるため使い勝手が良い。さらに、使用者の不注意による洗濯機への高温湯の注湯を防止できる。
加えて、給湯器で湯水混合制御弁を用いて湯・水の混合比を制御することなしに、簡単な構成で低温の湯を洗濯機に注湯できるので、良好なウール洗いが安価に実施できる。
【0039】
更に、本発明の請求項記載の洗濯機注湯装置によれば、注湯温度制御を容易に行うことができる。
【0040】
更に、本発明の請求項記載の洗濯機注湯装置によれば、一般給湯栓への給湯動作中に注湯動作を行っても、給湯器から出湯される湯の温度が変わらないので使い勝手が良い。
【図面の簡単な説明】
【図1】本実施形態としての洗濯機注湯機能付風呂給湯器の概略構成図である。
【図2】注湯リモコンの外観図である。
【図3】ウール用湯及び湯洗いモードにおけるコントローラの行う制御処理を表すフローチャートである。
【図4】ウール用湯及び湯洗いモードにおけるコントローラの行う制御処理を表すフローチャートである。
【符号の説明】
9…コントローラ、21…給湯カラン、28…水量制御弁、50…給湯部、51…給湯バーナ、52…給湯熱交換器、56…給水管、57…出湯管、60…洗濯注湯制御部、61…水供給管、62…湯供給管、63…給水電磁弁、64…給湯電磁弁、65…主供給管、68…注湯リモコン、90…洗濯機、92…注湯管。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a washing machine pouring device for pouring hot water from a water heater into a washing machine.
[0002]
[Prior art]
Conventionally, a washing machine pouring device for pouring hot water discharged from a water heater or remaining hot water in a bathtub into a washing machine is known. In such a washing machine pouring device, for example, when washing with hot water from a water heater, washing is started from the water heater by performing a hot water start operation from a pouring remote controller connected to the washing machine pouring device. Open the solenoid valve that opens and closes the hot water flow path to the machine. Therefore, when the water electromagnetic valve of the washing machine is opened, water is passed through the water heater to start the combustion operation, and hot water heated to the set temperature is supplied to the washing machine. For this reason, especially when the water temperature is low, such as in winter, the detergent can be dissolved more easily than in the case where tap water is supplied as it is, and the effect of removing dirt can be enhanced.
[0003]
[Problems to be solved by the invention]
However, since the hot water temperature of the water heater is set by the hot water remote controller connected to the hot water heater, if the hot water start operation is performed by the pouring remote controller while the hot water remote controller is set to a high temperature, the hot water remote controller is connected to the washing machine. The hot water set in is supplied. In general, the temperature of hot water supplied to the washing machine is specified to be 50 ° C. or lower. If such hot water is supplied, the washing machine may break down and the laundry may be easily damaged. For this reason, when it is desired to perform hot water supply in the kitchen and pouring water into the washing machine at the same time, the set temperature of the hot water supply must be changed to a temperature suitable for pouring water into the washing machine (for example, 40 ° C.). In addition, the hot water supply temperature could not be freely selected and the usability was bad.
In addition, when washing wool, it is most preferable to use hot water of about 30 ° C. However, if the hot water outlet of 30 ° C is used with the water heater as described above, drainage is generated in the heat exchanger of the water heater. Therefore, such low temperature hot water could not be poured into the washing machine. Even with a conventional water heater, if the mixing ratio of hot water and water is controlled using a hot water mixing control valve, low temperature hot water can be poured out and poured into a washing machine, but the equipment becomes expensive. There was a problem that.
In addition, there is a washing machine pouring device that lowers the hot water temperature by mixing cold water with hot water poured into the washing machine when the temperature is set by a hot water remote controller. In the machine pouring apparatus, since cold water is simply mixed, it was not possible to supply hot water at an appropriate temperature.
The washing machine pouring device of the present invention solves the above-mentioned problems, and aims to make it possible to perform good wool washing while simultaneously pouring hot water into a washing machine and hot water supply in a kitchen or the like.
[0004]
[Means for Solving the Problems]
  The washing machine pouring device according to claim 1 of the present invention for solving the above-mentioned problems is
  A water heater that heats cold water and supplies hot water to a general water tap such as a kitchen,
  A washing hot water supply path that branches off from the hot water supply path of the water heater and supplies hot water to the washing machine;
  Hot water opening and closing means for opening and closing the washing water supply path;
  A washing water supply path for supplying cold water to the washing machine;
  Water opening and closing means for opening and closing the washing water supply path;
  With,
  Opening both the hot water opening and closing means and the water opening and closing means to pour mixed hot water into the washing machine, and open only one of the hot water opening and closing means and the water opening and closing means. The unit pouring process is cyclically repeated with a combination of pouring water into the washing machine or a hot water single side feeding process for pouring water, and the temperature of the hot water supplied to the washing machine at the end of each unit pouring process is a predetermined temperature. With pouring control means to controlIn the washing machine pouring device,
The unit pouring process is a distribution of the hot water simultaneous supply process and the hot water piece side supply process so that one process is completed every time the washing machine is poured by a predetermined pouring amount or a predetermined pouring time. DecideThis is the gist.
[0006]
  Further, the claims of the present invention2The washing machine pouring device described in the above claim1In the washing machine pouring device
  When performing the pouring operation to the washing machine and the hot water supply operation to the general hot water tap at the same time, the hot water set temperature to the general hot water tap has priority over the hot water temperature of the hot water heater.
[0007]
The washing machine pouring device according to claim 1 of the present invention having the above-described configuration supplies hot water discharged from a hot water supply to the washing machine through the washing hot water supply path, and supplies cold water to the washing machine through the washing water supply path. . At the time of washing pouring to supply hot water to the washing machine, the pouring control means controls the distribution between the simultaneous hot water supply process and the one-side hot water supply process, and the hot water supplied to the washing machine at the end of each unit pouring process. The temperature is a predetermined temperature determined in advance. For this reason, hot water can be finally poured into the washing machine at a predetermined temperature no matter what the set temperature of the hot water supply is. That is, the user can freely set the temperature of the hot water discharged from the water heater while pouring the washing machine at the optimum pouring temperature.
Furthermore, by mixing the hot water from the washing hot water supply passage and the cold water from the washing water supply passage, hot water having a temperature lower than the lowest temperature hot water that can be discharged from the hot water heater can be supplied to the washing machine.
[0008]
  Also,the aboveEach time the washing machine pouring device pours into the washing machine only for a predetermined amount of pouring or for a predetermined pouring time, the pouring temperature to the washing machine becomes a predetermined temperature, and this unit pouring process is performed. The amount of hot water required for washing is supplied with simple control of repeating.
[0009]
  Further, the claims of the present invention2The described washing machine pouring device is discharged from the water heater according to the hot water set temperature for the general hot water tap even when the hot water feeding operation to the general hot water tap and the hot water pouring operation to the washing machine are performed simultaneously.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
In order to further clarify the configuration and operation of the present invention described above, a preferred embodiment of the washing machine pouring apparatus of the present invention will be described below.
[0011]
FIG. 1 is a schematic configuration diagram of a bath water heater 1 with a washing machine pouring function (hereinafter simply referred to as a water heater 1) as an embodiment of the present invention. The water heater 1 is roughly composed of a circulation heating unit 40, a hot water supply unit 50, and a washing and pouring control unit 60.
[0012]
The circulation heating unit 40 sends a bath heat exchanger 42 that heats the bath water, a return pipe 46 that sends the bath water to the bath heat exchanger 42, and forwards the bath water heated by the bath heat exchanger 42 to the bathtub 20. A circulation heating circuit is formed with the pipe 47, and a bath bypass pipe 34 that connects the return pipe 46 and the forward pipe 47 to bypass the bath heat exchanger 42 is provided.
The return pipe 46 is provided with, in order from the upstream side, a bath water thermistor 24 that detects hot water temperature before reheating, a circulation pump 22 that circulates bathtub water, and a water flow switch 23 that confirms the flow of the circulating water. On the other hand, the outgoing pipe 47 is provided with a bath hot water thermistor 25 that detects the hot water temperature after reheating in the vicinity of the bath heat exchanger 42. The bath heat exchanger 42 is provided above the bath combustion chamber 49 and is heated by the bath burner 41.
[0013]
The hot water supply unit 50 is a water supply pipe 56 connected to the water pipe, a hot water supply heat exchanger 52 that heats water supplied from the water supply pipe 56, and a flow path that sends out hot water heated by the hot water supply heat exchanger 52. The hot water supply heat exchanger 52 is provided in the upper part of the hot water supply combustion chamber 59 and is heated by the hot water supply burner 51. The hot water supply burner 51 includes three sets of burners having different combustion capacities, and the burner that burns is switched according to the amount of combustion.
The water supply pipe 56 includes, in order from the upstream, a flow rate sensor 26 that detects the amount of water input, a hot water supply water thermistor 27 that detects the water temperature, and a motor-driven water amount control valve that adjusts the water flow rate so that the set hot water temperature can be obtained. 28 is provided, and the hot water supply pipe 57 is provided with a hot water supply heat exchanger outlet thermistor 12 for detecting the hot water temperature after heat exchange.
[0014]
A hot water supply bypass pipe 36 that bypasses the hot water supply heat exchanger 52 is connected between the hot water supply pipe 56 and the hot water supply pipe 57, and a bypass valve 14 that opens and closes the hot water supply bypass pipe 36 is provided. The hot water supply pipe thermistor 15 for detecting the temperature of the hot water mixed with the water passing through the hot water supply bypass pipe 36 and the hot water after the heat exchange is provided in the hot water supply pipe 57 on the downstream side from the connection point with the hot water supply bypass pipe 36. Further downstream, it is connected to a general hot water supply pipe 37 communicating with a hot water supply curan 21 (general hot water tap) such as a kitchen. In addition, a drop pipe 30 for supplying hot water to the bathtub 20 is provided by branching from a hot water discharge pipe 57 downstream of the hot water supply hot water thermistor 15. The dropping pipe 30 connects the hot water supply section 50 and the circulation heating section 40, and detects the flow rate from the dropping solenoid valve 31 for opening and closing the dropping pipe 30 and the hot water supply section 50 to the circulation heating section 40 in order from the upstream side. A drop flow sensor 32 and two check valves 33 for preventing backflow are provided.
[0015]
The hot water supply unit 50 and the circulation heating unit 40 are provided with a common air supply duct 35 serving as a supply path for combustion air, and air is supplied to the bath combustion chamber 49 and the hot water supply by one fan 18 driven by the fan motor 19. Simultaneously supplied to the combustion chamber 59. In addition, the gas flow path is provided with an original solenoid valve 10 that opens and closes the gas flow path in order from the upstream side, and a proportional valve 11 that controls the gas amount in accordance with the energization amount. And branch to the bath-side gas flow path. On the hot water supply side, hot water supply gas electromagnetic valves 55 for independently opening and closing the gas flow paths to the three sets of burners are provided, and independent combustion control is performed. On the other hand, a bath gas solenoid valve 45 for opening and closing the bath side gas flow path is provided on the bath side.
The bath burner 41 and hot water supply burner 51 are provided with electrodes 43 and 53 for igniting gas by the operation of the igniter 13 and frame rods 44 and 54 for detecting a combustion flame. Are connected to each other, and predetermined control such as hot water and reheating is performed. The controller 9 includes a microcomputer as a main part, and is connected to a hot water remote controller 58 that externally operates a hot water supply operation and a bath remote controller 48 that externally operates a bath operation.
[0016]
The hot water remote controller 58 can set the set temperature to a range of 38 to 48 ° C and values such as 50 ° C and 60 ° C. Then, the controller 9 performs hot water temperature control such as controlling the combustion amount of the hot water burner 51 so that the hot water temperature of the hot water supply section 50 approaches the set temperature set by the hot water remote controller 58.
[0017]
The washing and pouring control unit 60 includes a water supply pipe 61 connected to the water supply pipe 56 on the downstream side of the water amount control valve 28 of the hot water supply part 50 and a hot water supply pipe 62 communicating with the hot water supply pipe 57 via the dropping pipe 30. And a water supply electromagnetic valve 63 and a hot water supply electromagnetic valve 64 that open and close the respective flow paths. The hot water supply pipe 62 is provided with a check valve 2 for preventing backflow.
The water supply pipe 61 and the hot water supply pipe 62 merge on the downstream side of each solenoid valve and are connected to the main supply pipe 65. The main supply pipe 65 is provided with two check valves 3 for preventing backflow of supplied hot water and water, and a pouring flow rate sensor 4 for detecting the amount of pouring water into the washing machine 90.
[0018]
A bathtub water supply pipe 66 for supplying bathtub water to the washing machine 90 is connected to the main supply pipe 65, and the bathtub water supply pipe 66 is connected to the forward pipe 47 of the circulation heating unit 40.
A switching valve 67 that switches the flow path of the bathtub water to either the bathtub 20 side or the washing machine 90 side is provided at a branch portion of the forward pipe 47 to the bathtub water supply pipe 66. Moreover, in FIG. 1, the case where the switching valve 67 is in the closed position is a state (state a) in which the flow path of the bathtub water is switched to the bathtub 20 side, and the switching valve 67 is in the open position. The bath water flow path is switched to the washing machine 90 side (state b). In addition, the arrows a and b in FIG. 1 represent the direction of the bath water flow in the states a and b, respectively. The main supply pipe 65 is connected to a pouring pipe 92 for pouring the washing machine 90 on the downstream side of the connecting portion with the bathtub water supply pipe 66.
In addition, a pouring remote controller 68 for performing an external operation such as switching of the pouring mode is provided, and the pouring remote controller 68 is connected to the controller 9.
[0019]
As shown in FIG. 2, the pouring remote control 68 includes a washing mode switch 71 that selects a pouring mode during a washing operation of the washing machine 90, a rinsing mode switch 72 that selects a pouring mode during a rinsing operation, and a selection. A display panel 73 for displaying the poured pouring mode and the like, and a start switch 74 for starting the pouring operation. As the pouring mode at the time of the washing operation, the remaining hot water washing mode in which the remaining hot water in the bathtub 20 is supplied to the washing machine 90 as it is and the remaining hot water in the bathtub 20 is heated to 40 ° C. by the bath heat exchanger 42 and supplied. A hot water washing mode, a hot water washing mode in which hot water from the hot water supply pipe 62 and cold water from the water supply pipe 61 are mixed and supplied as 40 ° C. mixed water, and water washing in which cold water from the water supply pipe 61 is supplied as it is There are 5 types of modes, a hot water washing mode for wool that mixes hot water from the hot water supply pipe 62 and cold water from the water supply pipe 61 and supplies it as mixed hot water at 30 ° C. ) There are two types, a rinse mode and a water rinse mode.
[0020]
Here, pouring control in each of the water washing mode, the remaining hot water washing mode, and the hot water (including wool) washing mode will be described. The pouring control in the water rinsing mode and the hot water rinsing mode is the same as the pouring control in the water washing mode and the hot water washing mode, respectively.
In the water washing mode, the hot water supply electromagnetic valve 64 is closed, the switching valve 67 is switched to the state a, and the water supply electromagnetic valve 63 is opened. For this reason, when the water electromagnetic valve 91 provided in the washing machine 90 is opened, water from the water pipe flows through the water supply pipe 56, the water supply pipe 61, the main supply pipe 65, and the pouring pipe 92, and the washing machine 90. To be supplied.
[0021]
In the remaining hot water washing mode, the water supply electromagnetic valve 63 and the hot water supply electromagnetic valve 64 are closed, the switching valve 67 is switched to the state b, and the circulation pump 22 is driven. For this reason, when the water electromagnetic valve 91 provided in the washing machine 90 is opened, the remaining hot water in the bathtub 20 is returned to the return pipe 46, the forward pipe 47, the bathtub water supply pipe 66, the main supply pipe 65, and the pouring pipe 92. And is supplied to the washing machine 90.
In the case of the remaining hot water heating and washing mode, the hot water is heated and supplied by the bath burner 41 when passing through the bath heat exchanger 42 while the remaining hot water is being supplied to the washing machine 90 as described above. . In addition, the combustion of the bath burner 41 is controlled by the controller 9 so that the temperature of the remaining hot water that has passed through the bath heat exchanger 42 becomes 40 ° C.
[0022]
In the hot water washing (including wool hot water washing) mode, the switching valve 67 is switched to the state a, and the hot water solenoid valve 64 and the water solenoid valve 63 are simultaneously opened (simultaneous hot water supply process of the present invention). Only one side is opened (one-sided hot water supply process of the present invention). Such a process is defined as one cycle (unit pouring treatment of the present invention), and the temperature of the hot water poured into the washing machine when one cycle is completed is the target pouring temperature (hot water washing mode: 40 ° C., for wool The controller 9 controls opening and closing of the hot water supply electromagnetic valve 64 and the water supply electromagnetic valve 63 so that the hot water washing mode is 30 ° C.). And a desired pouring amount is obtained by repeating this cycle.
Here, the hot water supply route to the washing machine 90 when the hot water supply electromagnetic valve 64 is opened will be described. When the water electromagnetic valve 91 of the washing machine 90 is opened while the hot water supply electromagnetic valve 64 is open, the hot water supply burner 51 starts to combust when the water electromagnetic valve 91 is opened. Then, it flows through the dropping pipe 30, the hot water supply pipe 62, the main supply pipe 65, and the pouring pipe 92 and is supplied to the washing machine 90.
Accordingly, when the hot water supply electromagnetic valve 64 and the water supply electromagnetic valve 63 are simultaneously opened, hot water and water are simultaneously supplied to and mixed with the main supply pipe 65, and the mixed hot water is supplied to the washing machine 90 through the pouring pipe 92. The
[0023]
Next, control processing performed by the controller 9 in the wool washing mode will be described with reference to the flowchart of FIG. The difference in control between the hot water for wool (30 ° C.) washing mode and the hot water (40 ° C.) washing mode is only the difference in whether the temperature of pouring water into the washing machine 90 is 30 ° C. or 40 ° C. .
When the start switch 74 is pressed in the state in which the hot water washing mode for wool is selected (S1), the switching valve 67 is switched to the state a and the water supply electromagnetic valve 63 is opened (S2). Here, when water flow is not detected by the pouring water amount sensor 4 even though the water supply electromagnetic valve 63 is opened (S3: NO), the water electromagnetic valve 91 of the washing machine 90 is closed. Therefore, it waits for a predetermined time (for example, 18 hours) until the washing operation by the washing machine 90 is started (S4). The detection of water flow by the pouring water amount sensor 4 is determined by whether or not the pouring water amount sensor 4 detects a flow rate of 2.5 liters / minute or more for 3 seconds.
The reason for waiting for a long time here is that the use of a reservation timer of a fully automatic washing machine can be considered. If water passage is not detected even after a predetermined time has elapsed (S4: YES), it is determined that the user has made an erroneous operation, the water supply electromagnetic valve 63 is closed (S5), and the control is terminated.
[0024]
On the other hand, if water flow is detected in step 3, it is determined that the water electromagnetic valve 91 of the washing machine 90 is opened and the washing operation is started, and the process proceeds to step 6. In step 6, it is determined whether or not the hot water supply unit 50 is in use for hot water supply to the hot water supply currant 21 such as a kitchen. When the hot water supply unit 50 is not in use (S6: NO), the hot water supply temperature of the hot water supply unit 50 is set to 40 ° C., and the hot water supply electromagnetic valve 64 is opened (S7). Here, the hot water temperature is set to 40 ° C. because there is a problem that drainage is generated in the hot water heat exchanger 52, so the hot water supply unit 50 cannot discharge hot water as low as 30 ° C. is there. As will be described later, when the hot-water supply unit 50 is in use, priority is given to the set temperature on the hot-water supply side.
Then, the amount of hot water and the amount of water to be supplied in one cycle are calculated from the water temperature (T2) detected by the hot water supply / water thermistor 27 and the hot water temperature (T3) detected by the hot water / hot water thermistor 15 (S8). In this embodiment, it is controlled so that 10 liters of mixed hot water is poured into the washing machine 90 in one cycle.
[0025]
Here, the calculation method will be described. The amount of mixed hot water when the water supply electromagnetic valve 63 and the hot water supply electromagnetic valve 64 are opened simultaneously is Q1, the hot water temperature is T1, and the amount of mixed hot water when the water supply electromagnetic valve 63 and the hot water supply electromagnetic valve 64 are simultaneously opened. The ratio of the amount of water to the water ratio is the water ratio (η). The water ratio (η) is a constant determined by the instrument. Whether water or hot water is supplied after supplying water and hot water at the same time is determined by equation (1). If T1 is less than 30 ° C., the hot water solenoid valve 64 is opened to supply hot water, If it is 30 degreeC or more, the water supply electromagnetic valve 63 will open and water will be supplied.
T1 = η × T2 + (1-η) × T3 (1)
And the amount Q1 of mixed hot water at this time is calculated | required by Formula (2).
Q1 = {30 ° C. × 10 liters− (T2 or T3) × 10 liters} / {T1− (T2 or T3)} (2)
When water is introduced after supplying water and hot water simultaneously, T2 is substituted, and when hot water is introduced, T3 is substituted. And after supplying water and hot water simultaneously, the quantity Q2 of supplied water or hot water is calculated | required by Formula (3).
Q2 = 10 liters-Q1 (3)
[0026]
Then, when it is detected by the pouring flow rate sensor 4 that the mixed hot water amount Q1 calculated by the above calculation method in step 9 is supplied to the washing machine 90 (S9: YES), based on the calculation result, Either the hot water solenoid valve 64 or the water solenoid valve 63 is closed (S10). When the hot water flow rate sensor 4 detects that the amount of hot water or water supplied to the washing machine 90 is Q2 (S11: YES), the water supply electromagnetic valve 63 is opened, and the hot water supply electromagnetic The valve 64 is closed (S12), and one cycle is completed. Then, the cycle is repeated until the desired amount of pouring is reached by returning to step 6, and hot water of 30 ° C. optimal for wool washing is supplied to the washing machine 90.
[0027]
During the pouring of the mixed hot water Q1, the water flow is constantly detected by the flow sensor 4 for pouring, and the water flow is stopped every time the water flow is not detected (2.5 liters / min or less). The time is counted and accumulated, and when the accumulated time exceeds a predetermined time (3 minutes in this embodiment) (S13: YES), it is determined that the pouring operation for washing to the washing machine 90 is completed. The hot water supply electromagnetic valve 64 and the water supply electromagnetic valve 63 are closed (S14), and the process proceeds to a rinsing mode for performing pouring control corresponding to the rinsing operation of the washing machine 90 (S15).
Further, even during the pouring of hot water or the amount of water Q2, water flow is constantly detected by the pouring flow rate sensor 4, and the water flow stop time is counted and integrated, and the accumulated time is a predetermined time (this embodiment). 3 minutes) (S16: YES), it is determined that the washing pouring operation for the washing machine 90 is finished, and the hot water supply electromagnetic valve 64 or the water supply electromagnetic valve 63 is closed (S17). The process shifts to a rinsing mode for performing pouring control corresponding to the rinsing operation (S15).
In addition, while the water supply to the hot water supply heat exchanger 52 is stopped, the combustion of the hot water supply burner 51 is stopped, and the combustion is restarted by restarting the water supply.
[0028]
On the other hand, when it is determined in step 6 that the hot water supply unit 50 is in use for hot water supply to the hot water supply curan 21 such as a kitchen, the hot water supply electromagnetic valve 64 is opened (S18). And when the hot water temperature of the hot water supply part 50 is set to less than 50 degreeC (S19: NO), it transfers to step 8 while giving priority to the preset temperature, and supplies in 1 cycle with the calculation method mentioned above. The amount of hot water and the amount of water to be calculated are calculated. Based on the calculated value, the cycle is repeated as described above, and hot water of 30 ° C. that is optimal for wool washing is supplied to the washing machine 90 without changing the hot water temperature in the hot water supply section 50.
When the hot water temperature is set to 50 ° C. or higher (S19: YES) and the incoming water temperature is less than 17 ° C. (S20: NO), the hot water solenoid valve 64 and the water solenoid valve 63 are kept open simultaneously. If the incoming water temperature is 17 ° C. or higher (S20: YES), the hot water solenoid valve 64 is closed (S22), and only the water solenoid valve 63 is kept open. For this reason, when the hot tap water temperature of 50 degreeC or more is set, the malfunction that hot water is supplied to the washing machine 90 as it is and a clothing is damaged does not arise.
When the accumulated time in a state where water flow is not detected by the pouring flow sensor 4 (2.5 liters / min or less) exceeds a predetermined time (3 minutes in this embodiment) (S21: YES), washing is performed. The water supply electromagnetic valve 63 and the hot water supply electromagnetic valve 64 that have been opened after judging that the pouring operation for washing into the machine 90 has ended are closed (S14), and the pouring control corresponding to the rinsing operation of the washing machine 90 is performed. The rinsing mode is moved to (S15).
[0029]
The control process of the controller 9 in the hot water (40 ° C.) washing mode is substantially the same as the control process in the wool hot water (30 ° C.) washing mode described above. The only difference is that the calculation in step 8 changes to a pouring temperature of 40 ° C. and that the determination of the incoming water temperature in step 20 changes from 17 ° C. to 27 ° C. When the hot water supply unit 50 is not used, the hot water discharged from the hot water supply unit 50 is set to 40 ° C., so that the water supply electromagnetic valve 63 is controlled to open only for a very short time.
In addition, when the hot water supply unit 50 is used to discharge the hot water to the hot water supply currant 21, the hot water temperature supplied to the laundry pouring control unit 60 is the temperature set by the hot water supply remote controller 58. Hot water whose temperature is adjusted by the control unit 60 is supplied. Therefore, even if the hot water supply remote controller 58 sets a high hot water temperature such as 50 ° C., such hot water is not directly supplied to the washing machine 90.
[0030]
When the washing mode ends, the mode changes to the rinsing mode. In the water rinsing mode, the water supply electromagnetic valve 63 is opened while the switching valve 67 remains in the state a. For this reason, when the water electromagnetic valve 91 of the washing machine 90 is opened, water is supplied to the washing machine 90. Then, when two hours have passed since the transition to the water rinsing mode, it is determined that the rinsing operation of the washing machine 90 has ended, and the control is ended.
In the hot water rinsing mode, 40 ° C. hot water is supplied to the washing machine 90 by the same control as in the hot water washing mode described above while the switching valve 67 is kept in the state a. Then, when two hours have elapsed since the transition to the hot water rinsing mode, it is determined that the rinsing operation of the washing machine 90 has ended, and the control is ended.
[0031]
As described above, in the bath water heater 1 with the washing machine pouring function, the hot water solenoid valve 64 and the water solenoid valve 63 are simultaneously opened (simultaneous hot water supply process of the present invention), and then the water solenoid valve 64 and Opening only one of the hot water solenoid valves 63 (one-side hot water supply process of the present invention) is defined as one cycle (unit pouring process of the present invention), and a predetermined hot water temperature is reached in this one cycle. Therefore, the hot water supply section 50 can pour low temperature hot water into the washing machine 90 without controlling the hot water / water mixing ratio using the hot water / water mixing control valve. Accordingly, hot water as low as 30 ° C., which is optimal for washing wool, can be poured with a simple structure, and good wool washing can be carried out at low cost.
In addition, the hot water discharged from the hot water supply unit 50 is not poured into the washing machine 90 as it is, but is mixed with the water from the water supply pipe 56 by the washing and pouring control unit 60 to pour hot water. Even at ℃, it is always possible to pour hot water at the optimum temperature (40 ℃ or 30 ℃). In addition, when the hot water supply set temperature is 50 ° C. or higher, the hot water temperature is not controlled and the water supply electromagnetic valve 63 is kept open. Although hot water cannot be used, it can be prevented that hot water is poured into the washing machine 90 as it is and the clothes are damaged. Accordingly, even if the user starts noticing the hot water by using the hot water remote controller 68 without noticing that the hot water remote controller 58 is set to a high temperature, hot water can be prevented from being poured into the washing machine 90.
When the hot water supply to the hot water supply curan 21 (general hot water tap) and the washing pouring are performed simultaneously, the hot water temperature discharged from the hot water supply unit 50 is given priority to the temperature set by the hot water remote controller 58. When hot water is used in the kitchen or the like while pouring hot water into the washing machine 90, the hot water supply temperature can be set freely, which is convenient.
Furthermore, since water and hot water are supplied at the same time and then one cycle is configured in the order of supplying water or hot water, hot water is supplied in comparison with the case where one cycle is configured in the reverse order. In this case, the possibility of damaging the laundry such as wool can be suppressed.
[0032]
In the conventional appliance, the washing pouring controller 60 is a washing machine pouring device that is externally attached to the bath water heater as a separate unit from the bath water heater. It must be connected to a water pipe or the like upstream of the control valve 28, the water pressure applied to the water supply pipe 61 and the hot water supply pipe 62 changes, and the water ratio (η) does not become a constant by the instrument. . For this reason, when trying to make hot water having the optimum temperature for washing by the control as described above, the mixed hot water temperature (T1) cannot be obtained by calculation, and a thermistor for measuring T1 becomes necessary. On the other hand, when the washing and pouring controller 60 is built in the water heater 1 as in this embodiment, both the water supply pipe 61 and the hot water supply pipe 62 are provided downstream of the water amount control valve 28. Alternatively, since it can be provided by branching from the hot water outlet pipe 57, the ratio of the amount of water supplied to the main supply pipe 65 when the water supply electromagnetic valve 63 and the hot water supply electromagnetic valve 64 are simultaneously opened, that is, the water ratio (η ) Is always constant. Accordingly, since the temperature T1 of the mixed hot water mixed in the main supply pipe 65 can be obtained from the incoming water temperature T2 and the outgoing hot water temperature T3, it is not necessary to provide a thermistor for detecting the mixed hot water temperature T1, thereby reducing the cost. Can do.
[0033]
Further, as a device having a washing and pouring control unit built in a hot water heater with bath, there has been conventionally known a device that pours cold water or hot water into a washing machine via an outgoing pipe or a return pipe of a circulating heating unit. . In this case, when cold water passes through the bath heat exchanger, the water vapor in the atmosphere condenses and corrodes the bath heat exchanger, or drops on the lower burner and causes a clog of the flame. . Further, the pressure loss was large when passing through the forward pipe and the return pipe. On the other hand, in the bath water heater 1 with the washing machine pouring function of the present embodiment, cold water and hot water pass through a different flow path from the forward pipe and the return pipe, and thus the above problem does not occur. .
[0034]
Although the embodiment of the present invention has been described above, the present invention is not limited to such an embodiment, and it is needless to say that the present invention can be implemented in various modes without departing from the gist of the present invention.
For example, in the washing machine pouring apparatus of the present embodiment, the hot water supply electromagnetic valve 64 and the water supply electromagnetic valve 63 are simultaneously opened, and then only one of them is opened for a predetermined amount of hot water (for example, 10 Water supply solenoid valve 63 and hot water supply solenoid valve 64 are simultaneously opened so that one cycle (unit pouring process) is completed every time when the hot water is poured into the washing machine 90, and the water supply solenoid valve. The distribution of hot water / one-side supply processing in which only one of hot water supply solenoid valve 63 and hot water supply solenoid valve 64 is determined is determined. Hot water is supplied so that one cycle is completed every time a predetermined hot water is poured. The distribution between the simultaneous supply process and the hot water / one-side supply process may be determined. The control process performed by the controller 9 in the wool washing mode in this case will be described with reference to the flowchart of FIG. Only control different from the case where one cycle is completed every time a predetermined amount of pouring is poured will be described.
In step 80, the time A1 when the water supply electromagnetic valve 63 and the hot water supply electromagnetic valve 64 should be opened simultaneously in one cycle and the time A2 when only one of the water supply electromagnetic valve 63 or the hot water supply electromagnetic valve 64 should be opened are calculated. To do. In the present embodiment, one cycle is controlled to be performed in 60 seconds.
[0035]
Whether water or hot water is supplied after supplying water and hot water simultaneously is determined by equation (4). If T1 is less than 30 ° C., the hot water solenoid valve 64 is opened to supply hot water, If it is 30 degreeC or more, the water supply electromagnetic valve 63 will open and water will be supplied.
T1 = η × T2 + (1−η) × T3 (4)
And the simultaneous valve opening time A1 in this case is calculated | required by Formula (5), (6).
A1 = {(T2-30 ° C.) × η × 60 seconds} / {(30 ° C.−T1) + (T2-30 ° C.) × η} (5)
A1 = {(T3−30 ° C.) × (1−η) × 60 seconds} / {(30 ° C.−T1) + (T3−30 ° C.) × (1−η)} (6)
When water is introduced after supplying water and hot water simultaneously, equation (5) is used, and when hot water is introduced, equation (6) is used. And the one-side valve opening time A2 is calculated | required by Formula (7).
A2 = 60 seconds-A1 (7)
[0036]
In step 90, during the simultaneous valve opening time A1 calculated by the above calculation method, the water supply electromagnetic valve 63 and the hot water supply electromagnetic valve 64 are simultaneously opened to supply water and hot water simultaneously, and the simultaneous valve opening time A1. When the hot water pouring is completed (S90: YES), either the hot water supply electromagnetic valve 64 or the water supply electromagnetic valve 63 is closed based on the calculation result (S10). Then, during the one-side valve opening time A2, either the water supply electromagnetic valve 63 or the hot water supply electromagnetic valve 64 is opened, and when the pouring (water) of the one-side valve closing time A2 is completed (S110: YES), the water supply electromagnetic valve 63 is opened, and the hot water supply solenoid valve 64 is closed (S12), and one cycle is completed. Then, returning to step 6, this cycle is repeated until the desired amount of pouring is reached, and hot water of 30 ° C. optimum for wool washing is supplied to the washing machine 90.
[0037]
The washing pouring control unit 60 may be a separate unit from the bath water heater, and may be a washing machine pouring device that is externally attached to the bath water heater. In this case, it is preferable to provide detection means for detecting the water ratio (η), for example, a thermistor for measuring the mixed hot water temperature (T1) in the main supply pipe 65.
[0038]
【The invention's effect】
As described above in detail, according to the washing machine pouring apparatus of the first aspect of the present invention, the temperature of the hot water supplied to the general hot water tap of the water heater can be freely set while pouring at the optimum pouring temperature to the washing machine. It is easy to use because you can set it and use hot water at your favorite temperature in the kitchen. Furthermore, pouring hot water into the washing machine due to carelessness of the user can be prevented.
In addition, low temperature hot water can be poured into the washing machine with a simple configuration without using a hot water mixing control valve in the water heater to control the hot water / water mixing ratio. it can.
[0039]
  Further claims of the present invention1According to the described washing machine pouring device, pouring temperature control can be easily performed.
[0040]
  Further claims of the present invention2According to the described washing machine pouring device, even if the pouring operation is performed during the hot water supply operation to the general hot water tap, the temperature of the hot water discharged from the water heater does not change, so that it is easy to use.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a bath water heater with a washing machine pouring function as an embodiment of the present invention.
FIG. 2 is an external view of a pouring remote controller.
FIG. 3 is a flowchart showing a control process performed by a controller in wool hot water and hot water washing modes.
FIG. 4 is a flowchart showing a control process performed by a controller in wool hot water and hot water washing modes.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 9 ... Controller, 21 ... Hot water supply curan, 28 ... Water quantity control valve, 50 ... Hot water supply part, 51 ... Hot water supply burner, 52 ... Hot water supply heat exchanger, 56 ... Water supply pipe, 57 ... Hot water supply pipe, 60 ... Laundry pouring control part, DESCRIPTION OF SYMBOLS 61 ... Water supply pipe, 62 ... Hot water supply pipe, 63 ... Water supply solenoid valve, 64 ... Hot water supply solenoid valve, 65 ... Main supply pipe, 68 ... Hot water remote control, 90 ... Washing machine, 92 ... Hot water supply pipe.

Claims (2)

冷水を加熱して台所等の一般給湯栓に給湯する給湯器と、
上記給湯器の給湯路から分岐して湯を洗濯機に供給する洗濯湯供給路と、
上記洗濯湯供給路を開閉する湯開閉手段と、
冷水を洗濯機に供給する洗濯水供給路と、
上記洗濯水供給路を開閉する水開閉手段と
を備え
上記湯開閉手段と上記水開閉手段との両方を開成して洗濯機に混合湯を注湯する湯水同時供給処理と、上記湯開閉手段と上記水開閉手段との何れか一方のみを開成して洗濯機に注湯あるいは注水する湯水片側供給処理とを組み合わせた単位注湯処理をサイクリックに繰り返し行うとともに、上記各単位注湯処理の終了時点で洗濯機に供給された湯の温度が所定温度となるように制御する注湯制御手段を備えた洗濯機注湯装置において、
上記単位注湯処理は、所定の注湯量だけ或いは所定の注湯時間だけ洗濯機に注湯する毎に1回の処理が終了するよう、上記湯水同時供給処理と上記湯水片側供給処理との配分を決定することを特徴とする洗濯機注湯装置。
A water heater that heats cold water and supplies hot water to a general water tap such as a kitchen,
A washing water supply path that branches off from the hot water supply path of the water heater and supplies hot water to the washing machine;
Hot water opening and closing means for opening and closing the washing water supply path;
A washing water supply path for supplying cold water to the washing machine;
Water opening and closing means for opening and closing the washing water supply path ,
Opening both the hot water opening / closing means and the water opening / closing means to pour mixed hot water into the washing machine, and open only one of the hot water opening / closing means and the water opening / closing means. A unit pouring process is cyclically repeated in combination with hot water or a hot water single side supply process for pouring water into the washing machine, and the temperature of the hot water supplied to the washing machine at the end of each unit pouring process is a predetermined temperature. In the washing machine pouring device provided with the pouring control means for controlling so as to become ,
The unit pouring process is a distribution between the hot water simultaneous supply process and the hot water piece side supply process so that one process is completed every time the washing machine is poured by a predetermined pouring amount or a predetermined pouring time. A washing machine pouring device, characterized by determining .
洗濯機への注湯動作と一般給湯栓への給湯動作とを同時に行う際には、給湯器の出湯温度は、一般給湯栓への給湯設定温度が優先されることを特徴とする請求項1記載の洗濯機注湯装置。2. The hot water supply temperature to the general hot water tap is given priority over the hot water temperature of the hot water heater when performing the pouring operation to the washing machine and the hot water supply operation to the general hot water tap at the same time. washing machine pouring device according to.
JP2001156903A 2001-05-25 2001-05-25 Washing machine pouring device Expired - Lifetime JP4556040B2 (en)

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